What is the largest city in Ottawa County, MI?

Allendale is the largest city or town in Ottawa County, with about 26,679 residents.

How many ZIP codes are in Ottawa County?

Ottawa County includes 16 ZIP Code Tabulation Areas, including 49401, 49403, 49404, 49409, 49417.

What is the population of Ottawa County, MI?

About 301,203 people live in Ottawa County, based on American Community Survey 5-year estimates.

What counties border Ottawa County?

Ottawa County borders Kent County, Muskegon County, Allegan County.

Ottawa County, MI: Cities, ZIP Codes & Local Data

Population

301,203

Land area

564sq mi

People per sq mi

535

ZIP codes

16

Ottawa County at a glance

Ottawa County is about 3 times as dense as Michigan as a whole.
It is the 7th most populous of 83 counties in Michigan.
Households here earn a median of $90,502 a year, 24% more than the Michigan figure of $72,875.
A typical owner-occupied home is valued at $323,400 (40% above Michigan) and median rent is $1,211 a month.
The biggest population centers are Allendale (26,679), Jenison (17,582) and Grand Haven (10,996).

Local data for Ottawa County, MI

Counts from official public data

Housing and community stats

Ottawa County, MI, American Community Survey 2020-2024

Full profile

Median household income

$90,502

Poverty rate

8.3%

Median home value

$323,400

Prices +4.7% in a year

Median rent

$1,211/mo

Homeownership

79.3%

Bachelor's or higher

38.9%

Median age

36.5

Average commute

20.1 min

Largest reported origins and ancestries: Dutch Americans (78,335), German Americans (55,607), Irish Americans (24,567).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.6%

Sep 2026, 0.0 pts in a year

Average annual pay

$61,590

129,408 jobs, 2025

Income per person

$66,678

BEA, 2024

Federal spending

$1.8B

FY 2026, $6,012 per person

PPP loans

$836M

6,528 loans, 98,053 jobs reported

Campaign donations

$1.2M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Ottawa County, MI, workers 16 and older. American Community Survey 5-year estimates

Drove alone77.4%
Carpooled8.1%
Public transit0.4%
Walked2.7%
Bicycle0.3%
Taxi, ride-hailing, motorcycle or other0.8%
Worked from home10.3%

Average one-way commute: 20.1 minutes for people who do not work from home.

Environment and hazard risk

Ottawa County, MI, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: strong wind

Storm events since 1996

419

Most often thunderstorm wind

Flood insurance policies

318

0.3% of homes, county

July high / Jan low

80° / 19°F

37.6 inches of rain a year

Hazards, floods and storm history Check a flood zone 17 historic places

Health statistics

Share of adults in Ottawa County, MI, CDC PLACES estimates

All 40 measures

Obesity

32.3%

U.S. 33.3% -1.0 pts

Diabetes

9.4%

U.S. 12.1% -2.7 pts

Smoking

11.4%

U.S. 12.8% -1.4 pts

Uninsured (18-64)

6.5%

U.S. 11.1% -4.6 pts

Cities, towns and ZIP codes in Ottawa County

Population shown

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Frequently asked questions

What is the largest city in Ottawa County, MI?: Allendale is the largest city or town in Ottawa County, with about 26,679 residents.
How many ZIP codes are in Ottawa County?: Ottawa County includes 16 ZIP Code Tabulation Areas, including 49401, 49403, 49404, 49409, 49417.
What is the population of Ottawa County, MI?: About 301,203 people live in Ottawa County, based on American Community Survey 5-year estimates.
What counties border Ottawa County?: Ottawa County borders Kent County, Muskegon County, Allegan County.